Self-heating sad-iron.



P. H. WHEBLOGK.

SELF HEATING SADIRON.

ABPLIOATON FILED JUNE 10, y1912.

1,70645. Patented Aug. 19, 1913.

300g? n" f liti FRANK'H. WHEELOGK, CF WASHINGTON, DISTRICT OF COLUMBIA.

i SELF-*HEATING SAD-IRON.

To all 'whom t may concern:

Be it known that I, FRANK H. VHEELOCK, a citizen of the United States, residing at Washington, District of Columbia, have invented certain new anduseful Improvements in Selflaleating Sad-Irons; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to new and useful improvements in self heating sad-irons and more particularly to that class in which gas or similar combustible material is used for fuel and my object is to provide a very simple and vdurable form of burner and one wherein thorough distribution of heat is produced.

A further object is to provide means for causing the flame or products of combustion from the burner to travel through the combusflion chamber in a substantially spiral pat Other objects and advantages will be hereinafter set forth and pointed out in the following specification.

. In the accompanying' drawings which are made a part of this application, Figure 1 is a longitudinal central sectional view through the burner showing the same applied to use in connection with an iron. Fig. 2 `is a. transverse sectional view through the iron showing the burner in end elevation. 'Fig'. 3 is a perspective View of the burner and the part to which it is attached, and, Fig. 4 is a top plan view of the combustion chamber removed from the iron.

Referring to the drawings in which similar reference numerals designate correspending parts throughout the several views, 1 indicates an iron which may be constructed in the usual or any preferred manner, such as is used for ironing clothes and other garments and 2 indicates the combustion chamber which is located within the hollow of the iron, the roof 3 of the combustion chamber being preferably curved as shown for a purpose to be hereinafter set forth. The coinbustion chamber is spaced from the walls of the iron and is open at each end, while the -lower edges are provided with elongated slots 4 so that the heat can escapeA between the floor of the iron and thelower edges of the-combustion chamber and readily circulate between the combustion chamber and walls of the iron.

Specification of Letters Patent.

Application tiled June 10, 1912.

Patented Ane'. 19,1913.

Serial No. 702,721.

The combustion chamber is held in position within the iron by extending a screw 5 downwardly through the top of the iron and into engagement with the top of the combustion chamber, said screw clamping the combustion chamber against the floor of the iron. The forward end of the combustion chamber is likewise provided with an extension 6, which is curved to lit the curved end of the iron, said extension serving to better scatter the llame or products of combustion and direct the same against the licor and walls of the forward portion of the iron.

The rear end of the iron` is provided with a door 7, which is hinged at its upper edge to the iron and when in closed position, the

lower edge of the door engages a stop 8 fixed to the bottom of the iron. Extending substantially centrally through the door is a tube or mixing chamber 9, to the inner end of which is attached my improved form of burner 10, said burner being substantially a `hollow cup-shaped member which lits over the end of't-he tube and has its inner end in engagement with the inner face of the door, while. a lock nut 11 is placed around the tube 9 and engages the outer face of thel door,

thus securely locking the burner and tube in v engagement therewith. rlhe weight of the tube 9 and the parts attached thereto, serve to keep the door 7 closed while the iron is in use.

'lhe peripheral edge between the end wall 12 and the side wall 13 of the burner is beveled, as best shown at 14, and through this portion of the burner are formed a plurality ot' openings 15, said openings extending at right angles to the beveled portion 14 and preferably arranged eccentric to the axis of the burner. The end wall 12 is likewise provided with a plurality of openings 16, which are inclined outwardly from the axis of the burner and also eccentrically thereto and by arranging the openings 15 and 16 in this manner and directing the inclination thereof in the. same direction, the flame or products of combustion from the burner will be caused to travel in a spiral patht-hrough the combustion chamber, thus obtaining the full product of heat from the flame while traveling through the combustion chamber and by curving the roof 3 in the manner shown, said roof will not interfere with the spiral movement of the products of combustion.

The. openings 15 and 16 are so arranged that the jets of flame will freely commingle after passing from the burner and travel in the saine general path, thus avoiding any possibility ol creating a pocket between the sets ot flame which would tend to form 5 inonoxid or `other objectionable gases or odors. l v

The gas or other fuel'is conducted into the mixing chamber 9 in any suitable inanner, but in this instance l have shown a 10 flexible tube 17 and in. order to provide a proper amount of air for mixing with the gas, the tube 9 is provided adjacent its outer end with a innnber of ports 1S and owing to the suction caused by the fuel 15 passing tlnfough the tube, the air will be readily drawn through said ports and properly mixed with the gas while vpassing through the mixing chamber.

i The door 7 has its lower,l corners cnt away to form inlet openings 1S), through which air may pass into the interior ot the iran, -while the side walls ot' the iron arc pro -vided with outlet openings or slots Q0, 'through which the used products of cour bustion may escape from the interior of the iron.

ln lighting the burner when attached in thc manner shown, it 1s but necessary to swing the door upwardly, which will expose the end of the burner and by turning on the gas and applying a match thereto, it can be very easily lighted. 'It will likewise be seen that in View of the simplicity ot the burner, it can be very cheaply manufactured and readily applied to use and, while I have shown the saine in the present instance as nscdtor heating :in iron, it will be ,readily understood that it can be used tor heating other objects by introducing the 40 burner into a combustion chamber and it will further bey seen that by arranging the openings in the burner in the manner shown lthe products of combustion will travel in a spiral path, thus obtaining a better distribution of the heat.

What l claim is: l. A burner comprising a hollow body having one end closed, said burner having a plurality of openings extending therethrough at the meeting edge between the side and end walls of the burner, said end wall also having a plurality of openings extending therethrough, all of Said openings being inclined in the same direction and eccentrically to the axial center of the burner.

2. A hollow burner having one of its ends closed, the meeting edge between said closed end and side wall of the burner being beveled, said beveled portion having a plurality of openings extending therethrough, said end wall also having a plnralityof openings, all of said openings being eccentrically disposed to the axial center ot the burner, and means to convey fuel into said burner.

3. The combination with a hollowdike burner having one ot' its ends closed, series oit openings through the end and at the junction of the side and end walls of Said burner, said openings being arranged eccentrically of the axis oi' the burner, a mixing chamber attached to the burner and a combustion chamber into which the products of ctnnlnistion pass from the burner.

4. rlhe combination with a hollow iron, a door hinged to one end of the iron ,and a combustion clianlber within the iron and' spaced from the walls thereof, said com.

JAY B. SMiTi-i, Bonnin M. Siii'rn. 

